I don't think it is pointless at all. In fact, the point which you have just made about pragmatism and context is one of the most important aspects of what makes a song work. When I was singing in rock bands and playing on the street, I needed a very different sort of song to the one which I need today. We all know that satire will not work in a beer tent... Far from giving a reason not to do the workshop, I think you have given another very good factor which the participants should be aware of. I wish I was going!